...I'm hip Vetter, and you're right about the design, however...Sargent didn't invent the M3 colors, Corbin had it as an option way back in the day....but you might be right,
It just looks kinda basket-weavy like the Corbin, but then again doesn't look as wide...what's throwing me off is the cowl screw retainers....neither C or S uses them.
Tell tale sign is the M3 colors are on the side of the S but normal at the crotch area on a C...
I present evidence for your learning tadpole...
Sargent
Corbin...